import axios, {type AxiosResponse} from 'axios';
// prettier-ignore
import {ElNotification, ElMessageBox, ElLoading, ElMessage} from 'element-plus';
import useUserStore from '@/store/modules/user';
import {getToken} from '@/utils/auth';
import {tansParams, blobValidate} from '@/utils/common';
import errorCode from '@/utils/errorCode';
import cache from '@/plugins/cache';
import {saveAs} from 'file-saver';
import {nanoid} from 'nanoid';

// prettier-ignore
axios.defaults.headers['Content-Type'] = 'application/json;charset=utf-8';

// 创建axios实例
export const service = axios.create({
	baseURL: import.meta.env.VITE_APP_BASE_API,
	// 超时
	timeout: 10000 * 20,
});
// 是否显示重新登录
export const isRelogin = {show: false};
// Request拦截器
service.interceptors.request.use(
	(config: any) => {
		// 是否需要设置 token,只有在注册时候不需要传递token
		const isToken = (config.headers || {}).isToken === false;
		// 是否需要防止数据重复提交
		// prettier-ignore
		const isRepeatSubmit = (config.headers || {}).repeatSubmit === false;
		const requestId = nanoid();
		if (getToken() && !isToken) {
			// 请求加上随机ID
			config.headers.RequestId = requestId;
			// prettier-ignore
			config.headers.Authorization = 'Bearer ' + getToken(); // 让每个请求携带自定义token 请根据实际情况自行修改
		}

		// Get请求映射params参数
		if (config.method === 'get' && config.params) {
			let url = config.url + '?' + tansParams(config.params);
			url = url.slice(0, -1);
			config.params = {};
			config.url = url;
		}

		// prettier-ignore
		if (!isRepeatSubmit && (config.method === 'post' || config.method === 'put')) {
			// prettier-ignore
			const requestObj = {
				url: config.url,
				data: typeof config.data === 'object' ? JSON.stringify(config.data) : config.data,
				time: new Date().getTime(),
			};
			// prettier-ignore
			const sessionObj = cache.session.getJSON('sessionObj');
			// prettier-ignore
			if (sessionObj === undefined || sessionObj === null || sessionObj === '') {
				cache.session.setJSON('sessionObj', requestObj);
			} else {
				const s_url = sessionObj.url; // 请求地址
				const s_data = sessionObj.data; // 请求数据
				const s_time = sessionObj.time; // 请求时间
				const interval = 1000; // 间隔时间(ms)，小于此时间视为重复提交
				// prettier-ignore
				if (s_data === requestObj.data && requestObj.time - s_time < interval && s_url === requestObj.url) {
					const message = '数据正在处理，请勿重复提交';
					console.warn(`[${s_url}]: ` + message);
					return Promise.reject(new Error(message));
				}

				cache.session.setJSON('sessionObj', requestObj);
			}
		}

		return config;
	},
	error => {
		console.log(error);
		Promise.reject(error);
	},
);

// 响应拦截器
// prettier-ignore
service.interceptors.response.use((res: AxiosResponse) => {
	// 未设置状态码则默认成功状态
	const code = res.data.code || 200;
	// 获取错误信息
	// prettier-ignore
	const msg = errorCode[code] || res.data.msg || errorCode.default;
	// 二进制数据则直接返回
	// prettier-ignore
	if (res.request.responseType === 'blob' || res.request.responseType === 'arraybuffer') {
		return res.data;
	}

	if (code === 401) {
		if (!isRelogin.show) {
			isRelogin.show = true;
			// prettier-ignore
			ElMessageBox.confirm(
				'登录状态已过期，您可以继续留在该页面，或者重新登录',
				'系统提示',
				{
					confirmButtonText: '重新登录',
					cancelButtonText: '取消',
					type: 'warning',
				},
			)
				.then(() => {
					isRelogin.show = false;
					useUserStore().logOut().then(() => {
						location.href = '/index';
					});
				})
				.catch(() => {
					isRelogin.show = false;
				});
		}

		// prettier-ignore
		return Promise.reject('无效的会话，或者会话已过期，请重新登录。');
	}

	if (code === 500) {
		ElMessage({
			message: msg,
			type: 'error',
		});
		return Promise.reject(new Error(msg));
	}

	if (code !== 200) {
		ElNotification.error({
			title: msg,
		});
		return Promise.reject('error');
	}

	return res.data;
},
async error => {
	console.log('err', error);
	let {message} = error;
	if (message == 'Network Error') {
		message = '后端接口连接异常';
	} else if (message.includes('timeout')) {
		message = '系统接口请求超时';
	} else if (message.includes('Request failed with status code')) {
		message = '系统接口' + message.substr(message.length - 3) + '异常';
	}

	ElMessage({
		message,
		type: 'error',
		duration: 5 * 1000,
	});
	return Promise.reject(error);
},
);

export const download = async (url: string, params: any, filename: string) => {
	// prettier-ignore
	const downloadLoadingInstance = ElLoading.service({text: '正在下载数据，请稍候', spinner: 'loading', background: 'rgba(0, 0, 0, 0.7)'});
	let req = null;
	if (params) {
		req = service.post(url, params, {
			transformRequest: [
				params => tansParams(params),
			],
			headers: {'Content-Type': 'application/x-www-form-urlencoded'},
			responseType: 'blob',
		});
	} else {
		req = service.get(url, {
			headers: {'Content-Type': 'application/x-www-form-urlencoded'},
			responseType: 'blob',
		});
	}

	await req
		.then(async (resp: any) => {
			const isLogin = await blobValidate(resp);
			if (isLogin) {
				const blob = new Blob([resp]);
				// SaveAs(blob, filename, {
				// 	type: "application/octet-stream;charset=utf-8"
				// });
				saveAs(blob, filename);
				// Var blob2 = new Blob([resp], {type: "text/plain;charset=utf-8"});
				// saveAs(blob, resp.msg + ".xlsx");
				console.log('%s ====>>>导出成功', filename);
			} else {
				const resText = resp.text();
				const rspObj = JSON.parse(resText);
				// prettier-ignore
				const errMsg = errorCode[rspObj.code] || rspObj.msg || errorCode.default;
				ElMessage.error(errMsg);
			}

			downloadLoadingInstance.close();
		})
		.catch(r => {
			console.error(r);
			ElMessage.error('下载文件出现错误，请联系管理员！');
			downloadLoadingInstance.close();
		});
};

export default service;
